diff --git a/lib/svtplay_dl/output.py b/lib/svtplay_dl/output.py
index 4eb3ba9..b8e7821 100644
--- a/lib/svtplay_dl/output.py
+++ b/lib/svtplay_dl/output.py
@@ -139,10 +139,6 @@ def filename(options, stream):
                 # output is a directory
                 options.output = os.path.join(options.output, filenamify(title_tag))
 
-    if platform.system() == "Windows":
-        # ugly hack. replace \ with / or add extra \ because c:\test\kalle.flv will add c:_tab_est\kalle.flv
-        if options.output and options.output.find("\\") > 0:
-            options.output = options.output.replace("\\", "/")
     return True
 
 def output(options, extention="mp4", openfd=True):
diff --git a/lib/svtplay_dl/service/disney.py b/lib/svtplay_dl/service/disney.py
index bc7ae72..483ff4a 100644
--- a/lib/svtplay_dl/service/disney.py
+++ b/lib/svtplay_dl/service/disney.py
@@ -78,7 +78,7 @@ class Disney(Service, OpenGraphThumbMixin):
                 title = "%s-%s" % (title, options.service)
                 title = filenamify(title)
                 if len(directory):
-                    options.output = "%s/%s" % (directory, title)
+                    options.output = os.path.join(directory, title)
                 else:
                     options.output = title
 
@@ -104,7 +104,7 @@ class Disney(Service, OpenGraphThumbMixin):
                 title = "%s-%s" % (name, options.service)
                 title = filenamify(title)
                 if len(directory):
-                    options.output = "%s/%s" % (directory, title)
+                    options.output = os.path.join(directory, title)
                 else:
                     options.output = title
 
diff --git a/lib/svtplay_dl/service/kanal5.py b/lib/svtplay_dl/service/kanal5.py
index c055f70..a8a9894 100644
--- a/lib/svtplay_dl/service/kanal5.py
+++ b/lib/svtplay_dl/service/kanal5.py
@@ -70,7 +70,7 @@ class Kanal5(Service):
             title = "%s-s%s-%s-%s-%s" % (data["program"]["name"], data["seasonNumber"], data["episodeText"], data["id"], options.service)
             title = filenamify(title)
             if len(directory):
-                options.output = "%s/%s" % (directory, title)
+                options.output = os.path.join(directory, title)
             else:
                 options.output = title
 
diff --git a/lib/svtplay_dl/service/mtvnn.py b/lib/svtplay_dl/service/mtvnn.py
index 4df0ebb..b7748d2 100644
--- a/lib/svtplay_dl/service/mtvnn.py
+++ b/lib/svtplay_dl/service/mtvnn.py
@@ -32,7 +32,7 @@ class Mtvnn(Service, OpenGraphThumbMixin):
         if options.output_auto:
             directory = os.path.dirname(options.output)
             if len(directory):
-                options.output = "%s/%s" % (directory, title)
+                options.output = os.path.join(directory, title)
             else:
                 options.output = title
 
diff --git a/lib/svtplay_dl/service/raw.py b/lib/svtplay_dl/service/raw.py
index 36928b0..7dfb40f 100644
--- a/lib/svtplay_dl/service/raw.py
+++ b/lib/svtplay_dl/service/raw.py
@@ -20,7 +20,7 @@ class Raw(Service):
         extention = False
         filename = os.path.basename(self.url[:self.url.rfind("/")-1])
         if options.output and os.path.isdir(options.output):
-            options.output = "%s/%s" % (os.path.dirname(options.output), filename)
+            options.output = os.path.join(os.path.dirname(options.output), filename)
             extention = True
         elif options.output is None:
             options.output = "%s" % filename
diff --git a/lib/svtplay_dl/service/svtplay.py b/lib/svtplay_dl/service/svtplay.py
index 11c61e5..9205c6c 100644
--- a/lib/svtplay_dl/service/svtplay.py
+++ b/lib/svtplay_dl/service/svtplay.py
@@ -149,7 +149,7 @@ def outputfilename(data, filename, raw):
         title = "%s.%s-%s-svtplay" % (name, other, data["videoId"])
     title = filenamify(title)
     if len(directory):
-        output = "%s/%s" % (directory, title)
+        output = os.path.join(directory, title)
     else:
         output = title
     return output
diff --git a/lib/svtplay_dl/service/tv4play.py b/lib/svtplay_dl/service/tv4play.py
index 3e2d361..4a3bb38 100644
--- a/lib/svtplay_dl/service/tv4play.py
+++ b/lib/svtplay_dl/service/tv4play.py
@@ -92,7 +92,7 @@ class Tv4play(Service, OpenGraphThumbMixin):
             title = "%s-%s-%s" % (options.output, vid, options.service)
             title = filenamify(title)
             if len(directory):
-                options.output = "%s/%s" % (directory, title)
+                options.output = os.path.join(directory, title)
             else:
                 options.output = title
 
diff --git a/lib/svtplay_dl/service/vg.py b/lib/svtplay_dl/service/vg.py
index 531392c..83f903d 100644
--- a/lib/svtplay_dl/service/vg.py
+++ b/lib/svtplay_dl/service/vg.py
@@ -39,7 +39,7 @@ class Vg(Service, OpenGraphThumbMixin):
             title = "%s" % jsondata["title"]
             title = filenamify(title)
             if len(directory):
-                options.output = "%s/%s" % (directory, title)
+                options.output = os.path.join(directory, title)
             else:
                 options.output = title